Find the total surface area of a hemisphere and a solid hemisphere eac

1.	Find the total surface area of a hemisphere and a solid hemisphere each of radius 10 cm. (Use π = 3.14)
Answer» We have, Radius = 10 cm Total surface area of a hemisphere = 2πr² ⇒ Total surface area of a hemisphere = 2 × 3.14 × 10 × 10 = 628 cm² Total surface area of a solid hemisphere = 3πr² ⇒ Total surface area of a solid hemisphere = 3 × 3.14 × 10 × 10 = 942 cm²

Find the total surface area of a hemisphere and a solid hemisphere each of radius 10 cm. (Use π = 3.14)

Answer»

We have,

Radius = 10 cm

Total surface area of a hemisphere = 2πr²

⇒ Total surface area of a hemisphere = 2 × 3.14 × 10 × 10

= 628 cm²

Total surface area of a solid hemisphere = 3πr²

⇒ Total surface area of a solid hemisphere = 3 × 3.14 × 10 × 10

= 942 cm²